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- 03.5 YLW MSP
Stock tune?
Max Boost???
- Thread starter jerseyplaya2g1
- Start date
Stock tune?
CrazyCaker
Member
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- '10 Stang GT / '06 Mazda5 GT
No. I'm using a Microtech LT10S.
IIRC, blkzoomzoom went through several blocks.
threads like these are beyond pointless.
there is no exact answer because keeping the engine together is a function of too many variables. To name a few... maintenance, style of driving, a/f, timing, type of mods, etc...
At the end of the day, if you have ever held an oem FS-DE rod in your hand, you will wonder why mazda chose fisher price as its supplier.
shane02pro5
25ish_psi
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- New Caney TX
Even if the motor is built tranny and turbo are still taking some abuse too 
kicker22705
Member
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- 03.5 Ti MSP
haha sorry i didn't mean to miss you. if 14psi on a thumper doesn't show what the stock rods can handle w/ a good tune, i dunno what does.
kicker22705
Member
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- 03.5 Ti MSP
hmmm maybe it was joep then, its been too long to remember. blkzoomzoom attained some great numbers w/ mostly stock parts as well tho.
CrazyCaker
Member
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- '10 Stang GT / '06 Mazda5 GT
I'm surprised to be honest, and would never recommend others do the same without having a spare block as back up. I've already broke a welded msp lsd (using an mfactory one now), and the rods are still holding which totally blew my mind. I will attempting 18-20 psi once I'm ready to go ahead with the motor swap and see how long that last lol.
Outlawstar98
Member
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- 2003 MazdaSpeed Protege / 2013 BRZ
U running meth Crazycaker? If so that would help out tons aswell!
CrazyCaker
Member
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- '10 Stang GT / '06 Mazda5 GT
At the moment I am not running meth. It will be added later with the rebuild that's planned. I've done all my own tuning and as far as AFRs go I'm running 10.5-11 in boost, and 13-13.5 out of boost. Timing is not tuned to be very aggressive at the moment.
Outlawstar98
Member
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- 2003 MazdaSpeed Protege / 2013 BRZ
run meth man! Its one of the best mods you can do for boosted cars IMHO!
Let me correct you.
If do not have the basic intake,exhaust, and intercooler upgrade, do not up your boost. If you do and are tuned do not go over 10 psi or you will be playing russian roulette with your block. This is not a safe limit, it's just what most have run the longest w/o immediate failure. Some have run more on a very good tune, but their driving style also dictates how long it lasts.
Just remember s*** can still happen and be prepared to pay for a built or replacement engine if it breaks. There are too many variables to say what is a safe limit. If you aren't able to pay for a replacement engine it breaks, don't mess with the boost.
Also, a bad tune can blow a built motor just as easily as a stock motor.
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slo03.5msp
Member
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- 03.5 yellow msp
14-16 lbs for 5 years!!!!! Stock internals. My afrs are 12-12.5 still running. It's possible you just can't be stupid.
bedwards6954
Member
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- Mazda, RX-8
I agree with the water injection, that seems to help the most when adding boost to stock internals.
and whats your whp? on that amount of boost?
slo03.5msp
Member
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- 03.5 yellow msp
240whp at 15lb to about 13.9 at recline.
